Question

好的正则表达式大师，我有一个很长的文本，我试图在句子中添加引号，其中包含“他说的”和类似的变体。

例如：

s = 'This should have no quotes. This one should he said. But this one should not. Neither should this. But this one should she said.'

应该导致：

This should have no quotes. "This one should," he said. But this one should not. Neither should this. "But this one should," she said.

到目前为止，我可以非常接近，但不太正确：

>>> import re
>>> m = re.sub(r'\.\W(.*?) (he|she|it) said.', r'. "\1," \2 said.', s)

结果：

>>> print m
This should have no quotes. "This one should," he said. But this one should not. "Neither should this. But this one should," she said.

正如你所看到的，它在第一个实例周围正确地引用了引用，但是对于第二个实例来说它太早了。任何帮助表示赞赏！

Answer 1

评论中指出了一些不同的有效情况，但要解决您所面临的问题：

它引用了整个句子，因为它看到one should not.末尾的句号。你真正想要的是，只引用 last 期间。因此，在匹配的括号中，请确保不包括句点，如下所示：

m = re.sub(r'\.\W([^\.]*?) (he|she|it) said.', r'. "\1," \2 said.', s)

对于像"Dr. Seuss likes to eat, she said"这样的句子中的句点，这会失败，但这是另一个问题。